Example #1
0
        public override BaseGnssResult BuildResult()
        {
            var result = new RangeOrbitResult(this.CurrentMaterial, Adjustment, (RangeOrbitParamNameBuilder)this.MatrixBuilder.GnssParamNameBuilder);

            // result.PreviousResult = this.CurrentProduct;
            result.BasePrn = this.CurrentBasePrn;
            return(result);
        }
Example #2
0
        public override BaseGnssResult Produce(MultiSiteEpochInfo material)
        {
            //采用导航星历计算卫星初始坐标
            var ephService              = GlobalNavEphemerisService.Instance;
            RangeOrbitResult result     = null;
            RangeOrbitResult prevResult = null;
            double           timeDiffer = 1;
            int    loopCount            = 0;
            double loopThreshold        = 100 / GnssConst.LIGHT_SPEED;

            do
            {
                prevResult = result;

                foreach (var site in material)
                {
                    foreach (var sat in site)
                    {
                        if (prevResult == null)
                        {
                            var emissionTime = sat.RecevingTime - sat.GetTransitTime();
                            var eph          = ephService.Get(sat.Prn, emissionTime);//不改正相对论、钟差等
                            sat.Ephemeris = eph;
                        }
                        else
                        {
                            var ephResult = prevResult.EphemerisResults.Get(sat.Prn);
                            sat.Ephemeris = ephResult.Corrected;
                        }

                        //卫星钟差改正,根据计算的卫星钟差改正距离
                        new Gnsser.Correction.SatClockBiasCorrector().Correct(sat);
                    }
                    //直接计算,不用改正
                    //EpochEphemerisSetter.ReviseEphemerisOnly(site);
                }

                double old = 0d;
                if (prevResult != null)
                {
                    old = prevResult.MaterialObj.BaseEpochInfo.Time.Correction;
                }
                result = (RangeOrbitResult)base.Produce(material);

                if (prevResult != null)
                {
                    timeDiffer = old - result.MaterialObj.BaseEpochInfo.Time.Correction;
                    int ii = 0;
                }
                if (loopCount > 6)
                {
                    log.Error("迭代次数达到 " + loopCount + " 次,似乎不收敛!" + timeDiffer);
                }
                loopCount++;
            } while (loopCount < 10 && (prevResult == null || Math.Abs(timeDiffer) > loopThreshold));  //|| prevResult.

            return(result);
        }
Example #3
0
        /// <summary>
        /// 非差轨道确定
        /// </summary>
        /// <param name="Material">历元信息</param>
        /// <param name="ResultMatrix">平差信息</param>
        /// <param name="ParamNameBuilder">钟差估计器</param>
        /// <param name="previousResult">上一历元结果</param>
        public RangeOrbitResult(
            MultiSiteEpochInfo Material,
            AdjustResultMatrix ResultMatrix,
            RangeOrbitParamNameBuilder ParamNameBuilder,
            RangeOrbitResult previousResult = null)
            : base(Material, ResultMatrix, ParamNameBuilder)
        {
            //测站接收机钟差改正
            foreach (var site in Material)
            {
                var clkName = ParamNameBuilder.GetReceiverClockParamName(site.SiteName);
                var val     = ResultMatrix.Estimated.Get(clkName);
                site.Time.Correction = GetTimeCorrectionSeconds(val.Value);
            }

            //提取星历参数,可以用于改正卫星位置,进行迭代计算
            EphemerisResults = new BaseDictionary <SatelliteNumber, EphemerisResult>();
            foreach (var site in Material)
            {
                foreach (var sat in site)
                {
                    var prn = sat.Prn;

                    Ephemeris estimated = new Ephemeris(sat.Ephemeris.Prn, sat.Ephemeris.Time)
                    {
                        XyzDotRms = new XYZ()
                    };
                    var clkName = ParamNameBuilder.GetSatClockParamName(prn);
                    var val     = ResultMatrix.Estimated.Get(clkName);
                    estimated.ClockBias    = GetTimeCorrectionSeconds(val.Value);
                    estimated.ClockBiasRms = val.Rms / GnssConst.LIGHT_SPEED;

                    var names = ParamNameBuilder.GetSatDxyz(prn);
                    foreach (var item in names)
                    {
                        val = ResultMatrix.Estimated.Get(item);
                        if (item.Contains(Gnsser.ParamNames.Dx))
                        {
                            estimated.XYZ.X       = val.Value;
                            estimated.XyzDotRms.X = val.Rms;
                        }
                        if (item.Contains(Gnsser.ParamNames.Dy))
                        {
                            estimated.XYZ.Y       = val.Value;
                            estimated.XyzDotRms.Y = val.Rms;
                        }
                        if (item.Contains(Gnsser.ParamNames.Dz))
                        {
                            estimated.XYZ.Z       = val.Value;
                            estimated.XyzDotRms.Z = val.Rms;
                        }
                    }

                    EphemerisResults[prn] = new EphemerisResult((Ephemeris)sat.Ephemeris, estimated);
                }
            }
        }